Abstract - Effect of an Antioxidant System on the Structure and Properties of Natural Rubber-Clay Composite


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	Publications of MRB Latest Publications MRB Digest Journal of Rubber Research 3^rd Qtr 2008 Vol 11(3) 2^nd Qtr 2008 Vol 11(2) 1^st Qtr 2008 Vol 11(1) 4^th Qtr 2007 Vol 10(4) 3^rd Qtr 2007 Vol 10(3) 2^nd Qtr 2007 Vol 10(2) 1^st Qtr 2007 Vol 10(1) 1^st Qtr 2006 Vol 9(1) 2^nd Qtr 2006 Vol 9(2) 3^rd Qtr 2006 Vol 9(3) 4^th Qtr 2006 Vol 9(4) Submit paper/article Order Form	Abstract Effect of an Antioxidant System on the Structure and Properties of Natural Rubber-Clay Composite Mei Chen, Ning-Jian Ao, Ying Chen, Ju-Lan Qu, He-Ping Yu, Chen Wang, Hui-Ling Zhou and Hong-Lian Qian The clays were modified by using an antioxidant, metal passivating agent and polymeric coating agent, and the corresponding clay-rubber masterbatch was prepared from the modified clay. The properties and structure of the masterbatch after thermo-oxidative aging were studied. The results indicated that the actions of the antioxidant, polymeric coating agent and metal passivating agent, the thermo-oxidative ageing resistance of the masterbatch was significantly improved. Properties such as tensile strength, elongation at break and tear strength of the masterbatch could be increased from -61.4%, -40.9% and -57% to -11.1 %, -9.7% and -8.9%, respectively. The SEM ultrastructure of the cross section of the modified clay-rubber masterbatch after aging showed that the boundary surface between layers of section was smooth, which meant that the structure of the rubber was preserved satisfactorily. back
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